Dengue vector surveillance in Port Dickson, Negeri Sembilan

Ovitrap surveillance was initiated for six continuous weeks to determine the distribution and abundance of Aedes sp. mosquitoes in Port Dickson, Negeri Sembilan, and the impact of meteorological conditions on the Aedes populations. Two study areas within the locality were selected: Taman Sri Tanjung and Taman Intan Perdana. The abundance of Aedes populations in Taman Sri Tanjung was indicated by ovitrap index (OI) which ranged from 36.67%-82.14%. The mean number of larvae per ovitrap of Ae. Aegypti ranged from 4.08 ± 1.76 to 13.40 ± 0.81, while the mean for Ae. Albopictus ranged from 17.17 ± 1.47 to 25.83 ± 2.06. On the other hand, the OI for Taman Intan Perdana ranged from 56.67% to 80.00%, respectively, while the mean number of larvae per ovitrap of Ae. Aegypti ranged from 8.70 ± 1.06 to 13.50 ± 1.04, while the mean for Ae. Albopictus ranged from 13.85 ± 1.40 to 25.12 ± 1.98, respectively. The mean number of larvae per ovitrap obtained from both localities, shows that there was only a significant difference of mean between both locations in the first trip (P=0.006), whereas there were no significant difference in mean number of larvae between Taman Sri Tanjung and Taman Intan Perdana in other trips. The studies showed a correlation between OI and mean number of larvae per ovitrap for aedes populations in in Taman Sri Tanjung and Taman Intan Perdana (r = 0.56). There was a correlation among rainfall and mean number of larvae per ovitrap in Taman Sri Tanjung and Taman Intan Perdana (r = 0.56). However, there was no correlation between the mean larvae number per ovitrap in both study areas with temperature.